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Multi-stage magnetic-fluid seals for operating in water – life test procedure, test stand and research results Part II Results of life tests of multi-stage magnetic - fluid seal operating in water

Abstract

The edge criteria for magnetic-fluid seals durability research were described in previous article [24] and now the tests results are presented. The tests were made with three magnetic fluids using various magnets quantity in magnetic assemblies. If values obtained in the repeated test deviated by more than 10 % from results of the first test an additional control test was made for final characteristics. The characteristics are: critical pressure, critical motion velocity and working life of the seal. The test stands were prepared for particular seals dimensions and results of tests are presented in the form of tables, cross section draws and diagrams. In conclusion one can see that multi-stage magnetic-fluid seals could be efficiently used in water for rotating shaft seals in a limited range of motion velocity and cycles quantity. Nevertheless a particular applications can be provided by magnetic-fluid seals only.

Keywords:

shaft sealing, magnetic fluid, utility water, seal durability, critical pressure, critical motion velocity

Details

Issue
Vol. 20 No. 1(77) (2013)
Section
Latest Articles
Published
12-04-2013
DOI:
https://doi.org/10.2478/pomr-2013-0005
Licencja:
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Open Access License

This journal provides immediate open access to its content under the Creative Commons BY 4.0 license. Authors who publish with this journal retain all copyrights and agree to the terms of the CC BY 4.0 license.

 

Author Biography

Leszek Matuszewski,
Gdansk University of Technology, Faculty of Ocean Engineering and Ship Technology



Authors

Leszek Matuszewski

Gdansk University of Technology, Faculty of Ocean Engineering and Ship Technology

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